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Finding the Fourth Proportional to 8,240.97, 11,372.86 and 4,656.72

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Solution

The fourth proportional to 8,240.97, 11,372.86 and 4,656.72 is: 6,426.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.97 : 11,372.86 = 4,656.72 : x
  2. Step 2: Convert to fraction form
    8,240.97/11,372.86 = 4,656.72/x
  3. Step 3: Cross multiply
    8,240.97x = 11,372.86 × 4,656.72
  4. Step 4: Simplify right side
    8,240.97x = 52,960,150.94
  5. Step 5: Solve for x
    x = 52,960,150.94/8,240.97
  6. Step 6: Final answer
    x = 6,426.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.